There are 2 drawings for part 102-31910 available in AirCorps Library

Manufacturer's Drawing

North American Aviation,   P-51 Mustang Drawings (Early),   Page: --,   Revision: n/a  

BOLT - ENGINE MOUNT FIREWALL LOWER ATTACHING (MAGNAFLUX)

Associated Aircraft:   P-51  

Manufacturer's Drawing

North American Aviation,   P-51 Mustang Drawings (Late) Second Set,   Page: --,   Revision: d  

BOLT - ENGINE MOUNT FIREWALL LOWER ATTACHING (MAGNAFLUX)

Associated Aircraft:   P-51